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Bayesian model and selection signature analyses reveal risk factors for canine atopic dermatitis

Tengvall, Katarina; Sundström, Elisabeth; Wang, Chao; Bergvall, Kerstin; Wallerman, Ola; Pederson, Eric; Karlsson, Åsa; Harvey, Naomi D.; Blott, Sarah C.; Olby, Natasha; Olivry, Thierry; Brander, Gustaf; Meadows, Jennifer R. S.; Roosje, Petra; Leeb, Tosso; Hedhammar, Åke; Andersson, Göran; Lindblad-Toh, Kerstin

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Katarina Tengvall

Elisabeth Sundström

Chao Wang

Kerstin Bergvall

Ola Wallerman

Eric Pederson

Åsa Karlsson

Naomi D. Harvey

Natasha Olby

Thierry Olivry

Gustaf Brander

Jennifer R. S. Meadows

Petra Roosje

Tosso Leeb

Åke Hedhammar

Göran Andersson

Kerstin Lindblad-Toh


Canine atopic dermatitis is an inflammatory skin disease with clinical similarities to human atopic dermatitis. Several dog breeds are at increased risk for developing this disease but previous genetic associations are poorly defined. To identify additional genetic risk factors for canine atopic dermatitis, we here apply a Bayesian mixture model adapted for mapping complex traits and a cross-population extended haplotype test to search for disease-associated loci and selective sweeps in four dog breeds at risk for atopic dermatitis. We define 15 associated loci and eight candidate regions under selection by comparing cases with controls. One associated locus is syntenic to the major genetic risk locus (Filaggrin locus) in human atopic dermatitis. One selection signal in common type Labrador retriever cases positions across the TBC1D1 gene (body weight) and one signal of selection in working type German shepherd controls overlaps the LRP1B gene (brain), near the KYNU gene (psoriasis). In conclusion, we identify candidate genes, including genes belonging to the same biological pathways across multiple loci, with potential relevance to the pathogenesis of canine atopic dermatitis. The results show genetic similarities between dog and human atopic dermatitis, and future across-species genetic comparisons are hereby further motivated.


Tengvall, K., Sundström, E., Wang, C., Bergvall, K., Wallerman, O., Pederson, E., …Lindblad-Toh, K. (2022). Bayesian model and selection signature analyses reveal risk factors for canine atopic dermatitis. Communications Biology, 5(1), Article 1348.

Journal Article Type Article
Acceptance Date Nov 18, 2022
Online Publication Date Dec 8, 2022
Publication Date Dec 8, 2022
Deposit Date Feb 6, 2023
Publicly Available Date Feb 6, 2023
Journal Communications Biology
Electronic ISSN 2399-3642
Publisher Springer Science and Business Media LLC
Peer Reviewed Peer Reviewed
Volume 5
Issue 1
Article Number 1348
Keywords General Agricultural and Biological Sciences; General Biochemistry, Genetics and Molecular Biology; Medicine (miscellaneous)
Public URL
Publisher URL
Additional Information Received: 13 July 2022; Accepted: 18 November 2022; First Online: 8 December 2022; : The authors declare no competing interests.


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